Sprog is the most perfect two-coater periwinkle. I must say, that before this came along, my favorite was Orly Cashmere Cardigan, but the formula of the Orly is too thick and hard to apply. Sprog, instead, applies super easy, two effortless coats and it dries to a glossy finish. Perhaps the pictures below show the blue tones more prominent than they are, because Sprog is definitely purple-toned to my eyes. I think it's one of those that you must try on to appreciate its beauty. I really love the shade of Sprog, but it's very hard to describe in words.